Aqueon Betta Filter Cartridge Replacement 2-Pack

Each pack contains 2 replacement cartridges. For best results replace cartridge once a month. For small betta habitats such as bowls and aquariums up to 3 gallons. The replaceable carbon and sponge cartridge keep water cleaner and clearer. To replace simply remove the air pump twist off the old filter and twist the new one into place.

Aqueon 2Pk Betta Filter Cartridge